eglibc: Modify ldd script according to multilib config.

Bug fixing [YOCTO #1236].

1. Collect all the values for RTLDLIST for the current multilib
configuration to modify the ldd scripts.

2. Collect all the values for KNOWN_INTERPRETER_NAMES for the current
multilib configuration. Set the correct ld.so names for ldconfig to deal
with the multilib configuration.

Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

meta/recipes-core/eglibc/eglibc-2.13/multilib_readlib.patch

@@ -0,0 +1,17 @@
+Upstream-Status: Inappropriate [embedded specific]
+
+Replace the OECORE_KNOWN_INTERPRETER_NAMES with the value of 
+variable EGLIBC_KNOWN_INTERPRETER_NAMES.
+
+Lianhao Lu, 08/01/2011
+
+--- libc/elf/readlib.c.orig	2011-08-12 17:05:51.864470837 +0800
++++ libc/elf/readlib.c	2011-08-12 17:06:39.346942074 +0800
+@@ -52,6 +52,7 @@
+ #ifdef SYSDEP_KNOWN_INTERPRETER_NAMES
+   SYSDEP_KNOWN_INTERPRETER_NAMES
+ #endif
++  OECORE_KNOWN_INTERPRETER_NAMES
+ };
+ 
+ static struct known_names known_libs[] =

meta/recipes-core/eglibc/eglibc-ld.inc

@@ -0,0 +1,54 @@
+def ld_append_if_tune_exists(d, infos, dict):
+	tune = d.getVar("DEFAULTTUNE", True) or ""
+	libdir = d.getVar("base_libdir", True) or ""
+	if dict.has_key(tune):
+		infos['ldconfig'].add('{"' + libdir + '/' + dict[tune][0] + '",' + dict[tune][1] + ' }')
+		infos['lddrewrite'].add(libdir+'/'+dict[tune][0])
+
+def eglibc_dl_info(d):
+	ld_info_all = {
+		"mips": ["ld.so.1", "FLAG_ELF_LIBC6"],
+		"mips64-n32": ["ld.so.1", "FLAG_ELF_LIBC6"],
+		"mips64": ["ld.so.1", "FLAG_ELF_LIBC6"],
+		"mipsel": ["ld.so.1", "FLAG_ELF_LIBC6"],
+		"mips64el-n32": ["ld.so.1", "FLAG_ELF_LIBC6"],
+		"mips64el": ["ld.so.1", "FLAG_ELF_LIBC6"],
+		"mips-nf": ["ld.so.1", "FLAG_ELF_LIBC6"],
+		"mips64-nf-n32": ["ld.so.1", "FLAG_ELF_LIBC6"],
+		"mips64-nf": ["ld.so.1", "FLAG_ELF_LIBC6"],
+		"mips64el-nf-n32": ["ld.so.1", "FLAG_ELF_LIBC6"],
+		"mips64el-nf": ["ld.so.1", "FLAG_ELF_LIBC6"],
+		"powerpc": ["ld.so.1", "FLAG_ELF_LIBC6"],
+		"powerpc-nf": ["ld.so.1", "FLAG_ELF_LIBC6"],
+		"powerpc64": ["ld64.so.1", "FLAG_ELF_LIBC6"],
+		"powerpc64-nf": ["ld64.so.1", "FLAG_ELF_LIBC6"],
+		"core2": ["ld-linux.so.2", "FLAG_ELF_LIBC6"],
+		"core2-64": ["ld-linux-x86-64.so.2", "FLAG_ELF_LIBC6"],
+		"x86": ["ld-linux.so.2", "FLAG_ELF_LIBC6"],
+		"x86-64": ["ld-linux-x86-64.so.2", "FLAG_ELF_LIBC6"],
+		"i586": ["ld-linux.so.2", "FLAG_ELF_LIBC6"],
+	}
+
+	infos = {'ldconfig':set(), 'lddrewrite':set()}
+	ld_append_if_tune_exists(d, infos, ld_info_all)
+
+	#DEFAULTTUNE_MULTILIB_ORIGINAL
+	original_tune=d.getVar("DEFAULTTUNE_MULTILIB_ORIGINAL",True)
+	if original_tune:
+		localdata = bb.data.createCopy(d)
+		localdata.setVar("DEFAULTTUNE", original_tune)
+		ld_append_if_tune_exists(localdata, infos, ld_info_all)
+
+	variants = d.getVar("MULTILIB_VARIANTS", True) or ""
+	for item in variants.split():
+		localdata = bb.data.createCopy(d)
+		overrides = localdata.getVar("OVERRIDES", False) + ":virtclass-multilib-" + item
+		localdata.setVar("OVERRIDES", overrides)
+		bb.data.update_data(localdata)
+		ld_append_if_tune_exists(localdata, infos, ld_info_all)
+	infos['ldconfig'] = ','.join(infos['ldconfig'])
+	infos['lddrewrite'] = ' '.join(infos['lddrewrite'])
+	return infos
+
+EGLIBC_KNOWN_INTERPRETER_NAMES = "${@eglibc_dl_info(d)['ldconfig']}"
+RTLDLIST = "${@eglibc_dl_info(d)['lddrewrite']}"

meta/recipes-core/eglibc/eglibc.inc

@@ -1,4 +1,5 @@
 require eglibc-common.inc
+require eglibc-ld.inc
 
 STAGINGCC = "gcc-cross-intermediate"
 STAGINGCC_virtclass-nativesdk = "gcc-crosssdk-intermediate"

meta/recipes-core/eglibc/eglibc_2.13.bb

@@ -3,7 +3,7 @@ require eglibc.inc
 SRCREV = "14157"
 
 DEPENDS += "gperf-native"
-PR = "r12"
+PR = "r13"
 PR_append = "+svnr${SRCPV}"
 
 EGLIBC_BRANCH="eglibc-2_13"
@@ -18,6 +18,7 @@ SRC_URI = "svn://www.eglibc.org/svn/branches/;module=${EGLIBC_BRANCH};proto=http
            file://generate-supported.mk \
            file://glibc_bug_fix_12454.patch \
            file://ppc-sqrt.patch \
+           file://multilib_readlib.patch \
 	   "
 LIC_FILES_CHKSUM = "file://LICENSES;md5=98a1128c4b58120182cbea3b1752d8b9 \
       file://COPYING;md5=393a5ca445f6965873eca0259a17f833 \
@@ -83,6 +84,7 @@ do_move_ports() {
 
 do_patch_append() {
 	bb.build.exec_func('do_fix_ia_headers', d)
+	bb.build.exec_func('do_fix_readlib_c', d)
 }
 
 # We need to ensure that all of the i386 and x86_64 headers are identical
@@ -172,6 +174,10 @@ do_fix_ia_headers() {
 	cp ${S}/sysdeps/unix/sysv/linux/x86_64/sys/user.h ${S}/sysdeps/unix/sysv/linux/i386/sys/user.h
 }
 
+do_fix_readlib_c () {
+	sed -i -e 's#OECORE_KNOWN_INTERPRETER_NAMES#${EGLIBC_KNOWN_INTERPRETER_NAMES}#' ${S}/elf/readlib.c
+}
+
 do_configure () {
 # override this function to avoid the autoconf/automake/aclocal/autoheader
 # calls for now
@@ -201,6 +207,11 @@ do_compile () {
 			rpcgen -h $r -o $h || oewarn "unable to generate header for $r"
 		done
 	)
+	echo "Adjust ldd script"
+	[ -z "${RTLDLIST}" ] && return
+	sed -i ${B}/elf/ldd -e 's#^\(RTLDLIST=\)"\(.*\)"$#\1\2#'
+	sed -i ${B}/elf/ldd -e 's#^\(RTLDLIST=\)\(.*\)$#\1"${RTLDLIST} \2"#'
+
 }
 
 require eglibc-package.inc